EP 0074720 B1 19860108 - DISCHARGE LAMPS
Title (en)
DISCHARGE LAMPS
Publication
Application
Priority
GB 8127747 A 19810915
Abstract (en)
[origin: EP0074720A2] High pressure discharge lamps have discharge tubes (1) of ceramic material having end caps (4) into which electrodes (8) are mounted on fixed shanks (7). The invention provides a preferred construction for mounting on electrode shank (7) or an external conducting member (11) in a cermet end cap (4). A metal coil (10 or 11) is fixed in a respective opening in the end cap and supports the respective shank or conductor therein. Preferably the cermet is pressed into the desired shape with an aperture in it. The coil is inserted into the aperture so that after sintering the coil is fixed into the sintered cermet.
IPC 1-7
IPC 8 full level
H01J 61/36 (2006.01); H01J 61/82 (2006.01)
CPC (source: EP US)
H01J 61/36 (2013.01 - EP US); H01J 61/825 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB NL
DOCDB simple family (publication)
EP 0074720 A2 19830323; EP 0074720 A3 19831026; EP 0074720 B1 19860108; DE 3268402 D1 19860220; US 4507584 A 19850326
DOCDB simple family (application)
EP 82304284 A 19820813; DE 3268402 T 19820813; US 41765382 A 19820913